Phytec eGrabber-4plus, Hardware Manual

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eGrabber-4plus
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PHYTEC Meßtechnik GmbH 2004 L-608e_4
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Using Internal EEPROM
The eGrabber-4plus has an internal non-volatile memory. This
memory is intended for the storage of parameters.
A total of 252Bytes is available to the user.
Note:
Since the predecessor models to the eGrabber-4plus do not include
internal memory, the following functions are not compatible.
BYTE I2C_ReadEEProm (WORD nDevNo, BYTE bSubAddress,
BYTE *bByteRead)
bSubAddress: Memory address to be read (0x00 … 0xFB
*bByteRead: Pointer points to the Byte variable. The result
is written into the Byte variable.
return value: error code = SUCCESS, NOACK
Reads a Byte value from the EEPROM. Specified by calling the
memory address that is to be read. The result is returned in a Byte
variable form that must be pre-defined.
The function returns an error code as a return value
(see I²C_ReadByte).
BYTE I2C_WriteEEProm (WORD nDevNo, BYTE bSubAddres,
BYTE bData)
bSubAddress: memory address written to (0x00…0xFB
bData: Data byte that is written
return value: Error code = SUCCESS, NOACK, WRITE_FAILED
Writes a Byte into the internal EEPROM. Specifies the desired
memory address and the stored Byte to be written to.
The function returns an error code (see I2C_WriteByte).
Note:
The life span of the internal EEPROM memory is 1 million write
accesses. The number of read accesses is unlimited.